Manufacture of composite paraffin candles.



- EEIoE.

GEoRGE W. GRAY, OF WHITING, INDIANA, AssIGNoR TO THE. STANDARD OIL COMPANY, OF CHICAGO, ILLINOIS, A ooRPoRATIo OF INDIANA.

' MANUFACTURE OF COMPOSITE PARAFFIN CANDLES.

To all whmn it may concern:

Beit known thatI, GEORGE W. GRAY, acitizen of the United States, residing at Whiting,

in the county of Lake and State of Indiana,

have invented a new and useful Improvement in the Manufacture of Composite Paraflin (Jan- I dles, of which the following is aspecification.

stearic acid as a medium for stiffening the paraffin-wax to enable the candles to stand up under the softening tendency of warm atmosphere. The use of hydroxy-stearic acid alone in admixture with the parafiin-wax is found to be objectionable, for the reason that the acid will not remain in composite relation to the wax in the formation of the candles, but tends to stratify in them in the molds in which the candles are formed and accumulate toward their tapered ends, with the effect of leaving the remaining portions of the candles without reinforcement against the softening tendency referred to.

The object of this invention is to enable hydroxy-stearic acid to be used as the stiffening agent in the manufacture of composite 'parafiin-wax candles in a manner that will cause it to be diffused with substantial uniformity throughout the candles to render each candle a practically homogeneous mass of the mixture of wax and acid. This I accomplish by dissolving the hydroxy-stearic acid in a suitable acid, preferably stearic acid, inthe proportion of the total mass of about four per cent., more or less.- Other acid solvents of the hydroxy-stearic acid, such as benzoic acid or cerotic acid, in the same proportion as stearic acid or palmitic acid or crude tallow in the proportion of about ten per cent., more or less, of the total mass or elain stock in the proportion of about seven per cent., more or less, of the total mass may, however, be employed instead of stearic acid, though the latter is preferable; but I desire toinclude as within the purview of my invention all the Specification of Letters Patent. Application filed March 26, 1905. Serial No. 252,024.

specified acid solvents as wellas any other PatentedOct. 17, 1905.

to produce the stock to be molded into candles. Whatever the particular solvent for the hydroxy-stearic acid employed, however,

the proportions to be used are about three parts of the hydroxy-stearic acid to one part of the solvent. To produce the candle-stock, dissol droxy-stearic acid is throughly'Iri'ixedin proper proportion, as stated, with the paraffin-wax in a molten condition, and the stock is poured into suitable candle molds and hardened therein to form the candles. The composition is substantially homogeneous throughout the candle thus produced.

WhatI claim as new, and desire to secure by Letters Patent, is

1. In the manufacture of stock for composite candles by mixing hydroxy-stearic acid with paraffin-wax, the process of treating said acid for .the purpose set forth, which consists in dissolvingit witha suitable solvent in the proportion of about three parts of the hydroxy-stearic acid to one part of the solvent, and mixing the solution with the wax.

2. In the manufacture of stock for composite candles by mixing hydroxy-stearic acid with paraffin-wax, the process of treating said acid for the purpose set forth, which consists in dissolving it in a suitable acid in the prostearic acid to one part of said solvent, and mixing the solution with the wax.

3. In the manufacture of stool for com-pos- GEORGE W. GRAY. In presence of WM. CURTIS, W. E. WARwIcK.

portion of about three parts of the hydroxy- 

